Osmotic pressure can be calculated using the following equation:
Here,
C representated concentration
R represented gas constant
T represented temperature
representated osmotic pressure
R=0.0821 atm L mol ⁻¹
T = 25 + 273 = 298 K
C=
Given mass of the substance= 6.00 g
Volume= 1 L
=0.75 atm
Putting all the values in the equation:
Molar mass of the substance= 195 g mol⁻¹.
Answer:
Iron, or Fe, has 26 electrons, with two electrons in the outer valence shell. Iron is a transition metal and is both lustrous and easy to work with. Iron is also prone to rust, especially in damp environments. Iron is a ferrous metal, meaning that it can be magnetized.
Explanation:
Base + acid = salt + water
Example :
<span>HCl + NaOH = NaCl + H</span>₂<span>O
</span>
Answer A
hope this helps!
No, the two isotopes of lithium-6 and lithium-7 are not equally common.
The more plentiful isotope would be lithium-7.
This can be easily demonstrated by assuming that both isotopes were equally common. If that were the case, the average atomic mass would be (6 + 7)/2 = 6.5 amu. Now compare that value if they were both equal to the actual value found in nature. The value found in nature is 6.941 amu which is heavier than the 6.5 amu that would happen if they were equally common. Since the natural value is heavier, that means that there has to be more of the heavier isotope than there is of the lighter one. Therefore lithium-7 is more common than lithium-6.